Control method and control device of vehicle air conditioner, vehicle and readable storage medium

By obtaining the sunlight illumination data in the car, calculating the temperature offset value and sunshine radiation temperature, and accurately adjusting the air outlet temperature of the vehicle air conditioner, solving the problem of poor air outlet temperature adjustment effect in the existing technology and improving passenger comfort.

CN119704994AActive Publication Date: 2025-03-28CHONGQING CHANGAN AUTOMOBILE CO LTD
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Patent Information

Application Number
CN202510084156.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2025-03-28
Estimated Expiration
2045-01-20

AI Technical Summary

Technical Problem

In the prior art, the air outlet temperature adjustment effect of vehicle air conditioners is poor, resulting in poor passenger experience.

Method used

By obtaining the sunlight illuminance of the main driver and the co-pilot, the respective temperature offset values ​​and sunlight radiation temperature are calculated, and the air outlet temperature is determined in combination with the basic temperature to accurately adjust the operation of the air conditioner.

Benefits of technology

It effectively reduces the temperature difference caused by uneven sunshine and improves the overall comfort of passengers in the car.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of air conditioners, and discloses a control method and device of a vehicle air conditioner, a vehicle and a readable storage medium. The control method comprises the following steps: acquiring primary driver sunshine illumination and secondary driver sunshine illumination; according to the primary driving sunshine illumination and the secondary driving sunshine illumination, a primary driving temperature deviation value and a secondary driving temperature deviation value are determined respectively, and a primary driving sunshine radiation temperature and a secondary driving sunshine radiation temperature are determined; acquiring a first basic temperature of a primary driver and a second basic temperature of a secondary driver; according to the first basic temperature, the second basic temperature, the main driving temperature deviation value, the co-driving temperature deviation value, the main driving sunshine radiation temperature and the co-driving sunshine radiation temperature, the main driving air outlet temperature and the co-driving air outlet temperature are determined; and according to the main driving air outlet temperature and the co-driving air outlet temperature, an air conditioner is controlled to operate. The air outlet temperature of the main driving side and the air outlet temperature of the co-driving side are adjusted by considering the influence effect of sunlight illumination on the main driving side and the co-driving side, the temperature difference caused by uneven sunlight is reduced, and the comfort level of passengers in the vehicle is improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a control method, a control device, a vehicle and a readable storage medium for a vehicle air conditioning. Background Art

[0002] Car air conditioners are used to adjust the temperature inside the car to improve the comfort of passengers. The air conditioner is controlled by calibrating the interpolation table according to the ambient temperature outside the car to adjust the temperature. Since the interpolation calibration relies on calibration experience, the temperature adjustment effect is poor, which affects the passenger experience.

[0003] In the related art, a method for adjusting the air outlet temperature is provided. Taking into account the impact of sunlight on the temperature inside the vehicle, a light intensity adjustment factor is added. The air outlet temperature is compensated according to the light intensity to enhance the passenger experience.

[0004] In the process of implementing the above embodiment, there are the following problems: the outlet air temperature is compensated by using light intensity, and the adjusted outlet air temperature is relatively limited, the control effect is often unsatisfactory, and the impact on the passenger experience is small. Summary of the invention

[0005] One of the purposes of the present invention is to provide a vehicle air conditioning control method, a control device, a vehicle and a readable storage medium to solve the problems of poor air outlet temperature adjustment effect and poor passenger experience in the prior art.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] In some technical schemes, a vehicle air conditioning control method is provided, including: obtaining the sunlight illuminance of the main driver's seat and the sunlight illuminance of the co-driver's seat; determining the temperature offset value of the main driver's seat and the temperature offset value of the co-driver's seat respectively according to the sunlight illuminance of the main driver's seat and the co-driver's seat, and determining the sunlight radiation temperature of the main driver's seat and the co-driver's seat; obtaining the first basic temperature of the main driver's seat and the second basic temperature of the co-driver's seat; determining the main driver's seat air outlet temperature and the co-driver's seat air outlet temperature according to the first basic temperature, the second basic temperature, the main driver's seat temperature offset value, the co-driver's seat temperature offset value, the main driver's seat sunlight radiation temperature and the co-driver's seat sunlight radiation temperature; and controlling the air conditioning operation according to the main driver's seat air outlet temperature and the co-driver's seat air outlet temperature.

[0008] The vehicle air conditioning control method provided by the present disclosure determines the influence of the sunlight illumination on the temperature inside the vehicle by obtaining the main driver's sunlight illumination and the co-driver's sunlight illumination. Specifically, the temperature influence on the main driver's position is determined by the main driver's sunlight illumination, that is, the main driver's temperature offset value is determined; and the temperature influence on the co-driver's position is determined by the co-driver's sunlight illumination, that is, the co-driver's temperature offset value is determined. In addition, considering the influence of solar radiation on the surface temperature of an object, the main driver's sunlight radiation temperature is determined according to the main driver's sunlight illumination, and the co-driver's sunlight radiation temperature is determined according to the co-driver's sunlight illumination. Further, based on the basic temperature requirements of the main driver and the co-driver, that is, based on the first basic temperature and the second basic temperature, the main driver's air outlet temperature and the co-driver's air outlet temperature are determined in combination with the main driver's temperature offset value, the co-driver's temperature offset value, the main driver's sunlight radiation temperature and the co-driver's sunlight radiation temperature, and the main driver's air outlet temperature and the co-driver's air outlet temperature are determined respectively. The air conditioning operation is controlled so that the air outlet temperature on the main driver's side reaches the main driver's air outlet temperature, and the air outlet temperature on the co-driver's side reaches the co-driver's air outlet temperature.

[0009] The vehicle control method disclosed in the present invention takes into account the different effects of sunlight illumination on the main driver's seat and the co-driver's seat, and determines the temperature offset value of the main driver's seat and the sunlight radiation temperature of the main driver's seat by respectively obtaining the sunlight illumination of the main driver's seat on the main driver's side. Obtain the sunlight illumination of the co-driver's seat on the co-driver's side, and determine the temperature offset value of the co-driver's seat and the sunlight radiation temperature of the co-driver's seat. And according to the basic temperatures of the main driver's seat and the co-driver's seat, determine the target air outlet temperature of the main driver's side and the target air outlet temperature of the co-driver's side respectively. In this way, the air conditioning operation is controlled and the air outlet temperature of the main driver's side and the co-driver's side is adjusted to effectively reduce the temperature difference problem caused by uneven sunlight, thereby improving the overall comfort of the passengers in the car.

[0010] Furthermore, the steps of determining the main driver's seat temperature offset value and the main driver's seat temperature offset value respectively according to the main driver's seat sunlight illumination and the co-driver's seat sunlight illumination include: determining the light intensity weight coefficient according to the main driver's seat sunlight illumination and the co-driver's seat sunlight illumination; determining the main driver's seat light temperature and the co-driver's seat light temperature according to the main driver's seat sunlight illumination and the co-driver's seat sunlight illumination and the light intensity weight coefficient; determining the main driver's seat temperature offset value and the co-driver's seat temperature offset value respectively according to the main driver's seat light temperature and the co-driver's seat light temperature.

[0011] In this technical solution, different weights are given according to the different lighting conditions on the main driver's side and the co-driver's side to improve the accuracy of temperature adjustment and more accurately reflect the impact of light intensity on the temperature inside the car. Furthermore, the main driver's side lighting temperature and the co-driver's side lighting temperature are determined based on the main driver's side sunlight illumination and the co-driver's side sunlight illumination and the light intensity weight coefficient. Then, the main driver's side temperature offset value and the co-driver's side temperature offset value are determined based on the light temperature. In this way, by considering the possible lighting differences on both sides of the vehicle, the temperatures on both sides are compensated respectively, so that the air outlet temperature of the air conditioner can adapt to different lighting conditions, thereby improving the temperature balance on both sides of the vehicle and avoiding obvious temperature differences.

[0012] Furthermore, according to the sunlight illumination on the main driver's side and the sunlight illumination on the co-driver's side, the step of determining the light intensity weight coefficient includes: when the sunlight illumination on the main driver's side is equal to the sunlight illumination on the co-driver's side, determining the light intensity weight coefficient H=0.5; when the sunlight illumination on the main driver's side is not equal to the sunlight illumination on the co-driver's side, determining the light intensity weight coefficient H=Ls1 / (Ls1+Ls2), wherein Ls1 is the sunlight illumination on the main driver's side and Ls2 is the sunlight illumination on the co-driver's side.

[0013] In this technical solution, when the sunlight illumination on the main driver's side and the co-driver's side are equal, it means that the lighting in the main and co-driver's cabins is uniform, and the weight coefficient H is set to 0.5, that is, the air conditioning temperature adjustment on the main driver's side and the co-driver's side is the same, thereby improving the temperature balance on both sides of the car and providing a uniform and comfortable experience. In the case where the sunlight illumination on the main driver's side is not equal to the sunlight illumination on the co-driver's side, that is, the lighting in the main and co-driver's cabins is uneven, the weight coefficient is dynamically adjusted according to the actual light intensity on the main driver's side and the co-driver's side, so that the air conditioning system can be adjusted differently according to the specific lighting conditions on the main driver's side and the co-driver's side, thereby improving the riding comfort. Specifically, the calculation of the weight coefficient takes into account the ratio of the light intensity on the main driver's side and the co-driver's side, so that it can distinguish different light intensities, and then adjust the temperature on both sides separately, thereby improving the accuracy of temperature adjustment on both sides.

[0014] Furthermore, according to the sunlight illumination of the main driver's seat and the sunlight illumination of the co-driver's seat, and the light intensity weight coefficient, the step of determining the light temperature of the main driver's seat and the light temperature of the co-driver's seat includes: calculating the light temperature of the main driver's seat according to the first formula, the first formula is: (Ls1+Ls2)×H / 60=Ts1; calculating the light temperature of the co-driver's seat according to the second formula, the second formula is: (Ls1+Ls2)×(1-H) / 60=Ts2; wherein Ls1 is the sunlight illumination of the main driver's seat, Ls2 is the sunlight illumination of the co-driver's seat, Ts1 is the light temperature of the main driver's seat, Ts2 is the light temperature of the co-driver's seat, and H is the light intensity weight coefficient.

[0015] In this technical solution, the sunlight illuminance on the main driver's side and the co-driver's side are comprehensively considered and combined with the light intensity weight coefficient H to calculate the main driver's side light temperature and the co-driver's side light temperature respectively. This not only takes into account the overall balance of the temperature inside the car, but also takes into account the different effects of sunlight intensity on the main driver's side and the co-driver's side, so as to improve the accuracy of temperature regulation on the main driver's side and the co-driver's side and improve the comfort of the interior environment.

[0016] Further, the steps of determining the temperature offset value of the main driver's seat and the temperature offset value of the auxiliary driver's seat respectively according to the light temperature of the main driver's seat and the light temperature of the auxiliary driver's seat include: calculating the temperature offset value of the main driver's seat according to the third formula, and the third formula is: TAOS1 = K s ×Ts1; According to the fourth formula, the passenger temperature offset value is calculated, and the fourth formula is: TAOS2 = K s ×Ts2; where: TAOS1 is the temperature offset value of the main passenger seat, TAOS2 is the temperature offset value of the co-pilot seat, Ts1 is the light temperature of the main passenger seat, Ts2 is the light temperature of the co-pilot seat, K s Represents the sunlight temperature weighting factor.

[0017] In this technical solution, according to the actual lighting conditions on the driver's side and the front passenger's side, the temperature offset values ​​of the driver's side and the front passenger's side are calculated by introducing the sunlight temperature weight factor Ks, and the air outlet temperature on the driver's side and the front passenger's side is compensated to offset the additional heat brought by direct sunlight. By adjusting the air outlet temperature of the air conditioner to compensate for the influence of direct sunlight, the stability of the temperature inside the car is improved, and the comfort of passengers is also improved.

[0018] Further, the steps of determining the sunlight radiation temperature of the main driver's seat and the sunlight radiation temperature of the co-driver's seat respectively according to the sunlight illumination of the main driver's seat and the co-driver's seat include: calculating the sunlight radiation temperature according to the fifth formula; the fifth formula is: In the formula, C is the solar radiation temperature, α is the absorption rate of solar radiation by the object, I is the solar radiation illuminance (W / m2), ε is the emissivity of the windshield, and σ is the Stefan-Boltzmann constant; among them, I is the sunlight illuminance on the main driver's side, and the solar radiation temperature C1 of the main driver's side is calculated by the fifth formula; I is the sunlight illuminance on the co-driver's side, and the solar radiation temperature C2 of the co-driver's side is calculated by the fifth formula.

[0019] In this technical solution, the temperature rise due to solar radiation, namely the solar radiation temperature C, is calculated so that the air-conditioning system can be properly adjusted for this additional heat load, thereby improving the adjustment accuracy of the air-conditioning system and the riding comfort.

[0020] Further, the step of obtaining the first basic temperature of the main driver's seat and the second basic temperature of the co-driver's seat includes: obtaining the outside temperature, the inside temperature, the main driver's seat setting temperature, and the co-driver's seat setting temperature; according to the sixth formula, calculating the first basic temperature; the sixth formula is: TB1 = Kset ×T set1 -K r ×T r -K am ×T am ; According to the seventh formula, the second basic temperature is calculated; the seventh formula is: TB2 = K set ×T set2 -K r ×T r -K am ×T am ; Among them, TB1 is the first basic temperature of the main driver, TB2 is the second basic temperature of the co-driver, K set is the weight factor for setting temperature, T set1 The setting temperature of the main driver, T set2 Set the temperature for the passenger seat, K r is the vehicle interior temperature weight factor, T r is the temperature inside the car, K am is the weight factor of the outside temperature, T am The temperature outside the vehicle.

[0021] In this technical solution, by obtaining the outside temperature, the inside temperature, and the set temperatures of the main and co-pilot seats, multiple factors affecting the air outlet temperature are comprehensively considered, and weight factors corresponding to different factors are set to determine the first basic temperature that meets the temperature requirements of the main driver's side and the second basic temperature that meets the temperature requirements of the co-pilot side. In this way, by combining the outside temperature, the inside temperature, and the personalized temperature settings of the passengers, the air outlet temperature of the air conditioner can be automatically adjusted according to the settings of each passenger and the external environmental conditions, significantly improving the riding comfort of the passengers. By introducing weight factors and formulaic calculation methods, the air conditioning system realizes intelligent management of the temperature inside the car and improves the accuracy and efficiency of the adjustment.

[0022] Furthermore, according to the first basic temperature, the second basic temperature, the main driver's temperature offset value, the co-driver's temperature offset value, the main driver's sunlight radiation temperature and the co-driver's sunlight radiation temperature, the step of determining the main driver's air outlet temperature and the co-driver's air outlet temperature includes: according to the eighth formula, the main driver's air outlet temperature is calculated, and the eighth formula is: TAO1=TB1-TAOS1+C1; according to the ninth formula, the co-driver's air outlet temperature is calculated, and the ninth formula is: TAO2=TB2-TAOS2+C2; wherein, TAO1 is the main driver's air outlet temperature, TAO2 is the co-driver's air outlet temperature, TB1 is the first basic temperature of the main driver, TB2 is the second basic temperature of the co-driver, TAOS1 is the main driver's temperature offset value, TAOS2 is the co-driver's temperature offset value, C1 is the main driver's sunlight radiation temperature, and C2 is the co-driver's sunlight radiation temperature.

[0023] In this technical solution, the air outlet temperature of the main driver's side and the co-pilot's side is calculated by comprehensively considering the basic temperature, temperature offset value and solar radiation temperature. The control algorithm disclosed in this disclosure is used to specifically determine the main driver's side and the co-pilot's side air outlet temperature according to the different sunlight illumination on the main driver's side and the co-pilot's side, combined with the personalized temperature requirements of the passengers on the main driver's side and the co-pilot's side, combined with the external environmental conditions, thereby improving the temperature adjustment accuracy of the air conditioning system and enhancing the comfort of passengers.

[0024] Furthermore, the air conditioner includes a main driver's air duct, a passenger driver's air duct, a main driver's temperature damper and a passenger driver's temperature damper. According to the main driver's air outlet temperature and the passenger driver's air outlet temperature, the step of controlling the operation of the air conditioner includes: obtaining the surface temperature and the hot air temperature of the evaporator of the air conditioner; determining the first opening SW1 of the main driver's temperature damper according to the tenth formula, SW1=((TAO1-T E ) / (T W -T E ))×100%; According to the eleventh formula, determine the second opening SW2 of the passenger temperature damper; SW2=((TAO2-T E ) / (T W -T E ))×100%; TAO1 is the main passenger air outlet temperature, TAO2 is the co-pilot air outlet temperature, T E is the surface temperature of the evaporator, T W is the temperature of the hot air used for heating; according to the first opening SW1 and the second opening SW2, the opening of the main driver's temperature damper and the opening of the co-driver's temperature damper are adjusted respectively.

[0025] In this technical solution, by calculating the main driving air outlet temperature TAO1 and the evaporator surface temperature T E The difference between the hot air temperature T W Evaporator surface temperature T E The difference between the two values ​​is compared to determine the first opening degree SW1 of the driver's temperature damper. And by calculating the passenger's air outlet temperature TAO2 and the evaporator surface temperature T E The difference between the hot air temperature T W Evaporator surface temperature T E By comparing the difference between the two, the second opening SW2 of the passenger temperature damper is determined. By determining the opening of the driver's seat and the passenger's seat temperature damper, the opening of the temperature damper of each air duct is controlled to adjust the mixing ratio of cold and hot air, improve the accuracy of the outlet temperature control, and thus improve the comfort of passengers.

[0026] Further, the step of controlling the operation of the air conditioner according to the main driver's side air outlet temperature and the co-driver's side air outlet temperature includes: calculating the comprehensive air outlet temperature TAO according to the twelfth formula X ; The twelfth formula is: TAOX =TAO1×α+TAO2×(1-α), where TAO X is the comprehensive air outlet temperature of the air conditioner, TAO1 is the main driver's air outlet temperature, TAO2 is the co-driver's air outlet temperature, and α is the weight factor of the main cockpit temperature. X , control the operation of the air conditioner.

[0027] In this technical solution, by introducing the weight factor α, the method can perform weighted average of the main driver's cabin air outlet temperature TAO1 and the co-pilot's cabin air outlet temperature TAO2 according to the weight factor α of the main driver's cabin temperature to obtain the comprehensive air outlet temperature TAO of the air conditioner. X The weighted average calculation helps to achieve a balanced temperature on both sides of the vehicle and improve the overall riding experience. X , control the operation of the air conditioner to ensure the stability and comfort of the temperature in the car.

[0028] Furthermore, according to the comprehensive air outlet temperature TAO X The steps of controlling the operation of the air conditioner include: according to the comprehensive air outlet temperature TAO X and the outside temperature of the vehicle, determine the target air supply mode of the air conditioner; control the opening of the mode damper corresponding to the target air supply mode; wherein the air supply mode includes one or more of the following modes: face blowing mode, foot blowing mode, defrost mode, face blowing-foot blowing mode, face blowing-defrost mode, foot blowing-defrost mode and face blowing-foot blowing-defrost mode.

[0029] In this technical solution, according to the comprehensive air outlet temperature TAO X The system can determine the air supply mode suitable for the current environmental conditions based on the target air supply mode and the outside temperature. According to the target air supply mode, the opening of the air door is controlled to improve the comfort needs of passengers in different environments. By providing a variety of air supply modes, including face blowing mode, foot blowing mode, defrosting mode and their combination modes, the passenger's choice is increased to meet the personalized needs of different passengers. In addition, the various air supply modes can adapt to different climatic conditions, which improves the adaptability and flexibility of the system.

[0030] Furthermore, according to the comprehensive air outlet temperature TAO X The steps of controlling the operation of the air conditioner include: X When the temperature is greater than the first threshold, the air conditioner is controlled to operate in the external circulation mode; when the comprehensive air outlet temperature TAO X When the temperature is less than or equal to the second temperature threshold, the air conditioner is controlled to operate in an internal circulation mode; wherein the first temperature threshold is greater than the second temperature threshold.

[0031] In this technical solution, the comprehensive air outlet temperature TAO XWhen the temperature is greater than the first temperature threshold, the air conditioner is controlled to operate in external circulation mode, that is, the vehicle operates in heating mode, and the external circulation mode is turned on to prevent the windows from fogging. X When the temperature is less than or equal to the second temperature threshold, that is, the vehicle is running in cooling mode, the air conditioner is controlled to start the internal circulation mode to improve the cooling efficiency, increase the temperature drop speed, and reduce energy consumption.

[0032] Furthermore, according to the comprehensive air outlet temperature TAO X The steps of controlling the operation of the air conditioner include: according to the comprehensive air outlet temperature TAO X and the outside temperature, determine the target temperature of the evaporator and the temperature change rate of the evaporator; obtain the surface temperature of the evaporator to obtain the temperature difference between the surface temperature of the evaporator and the target temperature; according to the temperature difference and the temperature change rate, use the PI control algorithm to fine-tune the target speed of the compressor; combine the feedforward value of the compressor target speed and the PI control algorithm to determine the target speed of the compressor.

[0033] In this technical solution, according to the comprehensive air outlet temperature TAO X The PI control algorithm can adjust the compressor's target speed in real time based on the temperature difference and temperature change rate, improve the compressor's rapid response capability, and adjust in time to adapt to temperature changes. By combining the feedforward value and the PI control algorithm, the air conditioning system can more accurately control the compressor's target speed, thereby improving the system's energy efficiency and reducing energy consumption.

[0034] Furthermore, the air conditioner includes a first blower arranged in the main driver's seat air duct and a second blower arranged in the passenger seat air duct, and the control method also includes: determining a first speed of the first blower according to the outside temperature and the first basic temperature of the main driver's seat; determining a second speed of the second blower according to the outside temperature and the second basic temperature of the passenger seat; and controlling the operation of the first blower and the second blower according to the first speed and the second speed, respectively.

[0035] In this technical solution, by controlling the blower speeds of the driver's seat and the front passenger's seat respectively, the air supply volume of the driver's seat air duct and the front passenger's seat air duct can be controlled separately, thereby improving the accuracy of temperature regulation on the driver's side and the front passenger's side, helping to achieve temperature balance on both sides of the vehicle and improve riding comfort.

[0036] In some technical schemes, a vehicle air conditioning control device is provided, including: a first acquisition unit, used to acquire the sunlight illuminance of the main driver's seat and the sunlight illuminance of the co-driver's seat; a first determination unit, used to determine the temperature offset value of the main driver's seat and the temperature offset value of the co-driver's seat, and determine the sunlight radiation temperature of the main driver's seat and the co-driver's seat according to the sunlight illuminance of the main driver's seat and the co-driver's seat; a second acquisition unit, used to acquire the first basic temperature of the main driver's seat and the second basic temperature of the co-driver's seat; a second determination unit, used to determine the main driver's seat outlet air temperature and the co-driver's seat outlet air temperature according to the first basic temperature, the second basic temperature, the temperature offset value of the main driver's seat, the temperature offset value of the co-driver's seat, the sunlight radiation temperature of the main driver's seat and the co-driver's seat; a control unit, used to control the operation of the air conditioner according to the air outlet temperature of the main driver's seat and the co-driver's seat.

[0037] In some technical solutions, a vehicle air conditioner control device is provided, including a processor and a memory storing program instructions, and the processor is configured to execute the vehicle air conditioner control method as described in any of the above technical solutions when running the program instructions.

[0038] In some technical solutions, a vehicle is provided, comprising: a vehicle body; an air conditioner, arranged on the vehicle body; and a control device for the vehicle air conditioner as described in any of the above technical solutions, the control device being installed on the vehicle body and used to control the operation of the air conditioner.

[0039] In some technical solutions, a readable storage medium is provided, which stores program instructions. When the program instructions are executed, a computer is used to execute the vehicle air conditioning control method as described in any of the above technical solutions.

[0040] Beneficial effects of the present invention:

[0041] The vehicle control method disclosed in the present invention controls the air-conditioning operation to adjust the air outlet temperature on the driver's side and the passenger's side, taking into account the different effects of sunlight illumination on the driver's side and the passenger's side, so as to effectively reduce the temperature difference problem caused by uneven sunlight, thereby improving the overall comfort of the passengers in the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 A flow chart of a method for controlling a vehicle air conditioner provided by one embodiment of the present invention;

[0043] Figure 2 A flow chart of a method for controlling a vehicle air conditioner provided by yet another embodiment of the present invention;

[0044] Figure 3 A flow chart of a method for controlling a vehicle air conditioner provided by another embodiment of the present invention;

[0045] Figure 4A flow chart of a method for controlling a vehicle air conditioner provided by another embodiment of the present invention;

[0046] Figure 5 A flow chart of a method for controlling a vehicle air conditioner provided by another embodiment of the present invention;

[0047] Figure 6 A flow chart of a method for controlling a vehicle air conditioner provided by another embodiment of the present invention;

[0048] Figure 7 A flow chart of a method for controlling a vehicle air conditioner provided by another embodiment of the present invention;

[0049] Figure 8 A flow chart of a method for controlling a vehicle air conditioner provided by another embodiment of the present invention;

[0050] Fig. 9 A schematic diagram of adjusting a temperature damper provided by an embodiment of the present invention;

[0051] Fig.10 The comprehensive air outlet temperature TAO provided by an embodiment of the present invention X Schematic diagram of the relationship with the mode damper;

[0052] Fig.11 The comprehensive air outlet temperature TAO provided by an embodiment of the present invention X Relationship diagram with the opening of the mode damper;

[0053] Fig.12 A relationship diagram between a first basic temperature and a speed gear of a blower provided in one embodiment of the present invention;

[0054] Fig.13 A system block diagram of a vehicle air conditioner control device provided by one embodiment of the present invention;

[0055] Fig.14 A structural diagram of a vehicle air conditioner control device provided by one embodiment of the present invention. DETAILED DESCRIPTION

[0056] The following will describe the embodiments of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention, not for limiting the scope of protection of the present invention.

[0057] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0058] In some embodiments, in combination Figure 1 As shown, a method for controlling a vehicle air conditioner is provided, comprising:

[0059] S101, obtaining the sunlight illumination of the main passenger seat and the sunlight illumination of the co-pilot seat.

[0060] Optionally, light sensors are provided on the main driver's side and the passenger's side, respectively, and the light sensors on both sides are used to detect the main driver's side sunlight illumination and the passenger's side sunlight illumination. The specific location of the light sensor is not limited here.

[0061] S102, determining a temperature offset value for the main passenger seat and a temperature offset value for the auxiliary passenger seat according to the sunlight illumination of the main passenger seat and the sunlight illumination of the auxiliary passenger seat, respectively.

[0062] S103, determining the sunlight radiation temperature of the main passenger seat and the sunlight radiation temperature of the co-pilot seat respectively according to the sunlight illumination of the main passenger seat and the sunlight illumination of the co-pilot seat.

[0063] S104, obtaining a first basic temperature of the main driver's seat and a second basic temperature of the auxiliary driver's seat.

[0064] S105 , determining the main passenger seat air outlet temperature and the co-pilot seat air outlet temperature according to the first basic temperature, the second basic temperature, the main passenger seat temperature offset value, the co-pilot seat temperature offset value, the main passenger seat sunlight radiation temperature and the co-pilot seat sunlight radiation temperature.

[0065] S106, controlling the operation of the air conditioner according to the air outlet temperature of the driver's seat and the air outlet temperature of the co-driver's seat.

[0066] The vehicle air conditioning control method provided by the present disclosure determines the influence of the sunlight illumination on the temperature inside the vehicle by obtaining the main driver's sunlight illumination and the co-driver's sunlight illumination. Specifically, the temperature influence on the main driver's position is determined by the main driver's sunlight illumination, that is, the main driver's temperature offset value is determined. And the temperature influence on the co-driver's position is determined by the co-driver's sunlight illumination, that is, the co-driver's temperature offset value is determined. In addition, considering the influence of solar radiation on the surface temperature of an object, the main driver's sunlight radiation temperature is determined according to the main driver's sunlight illumination, and the co-driver's sunlight radiation temperature is determined according to the co-driver's sunlight illumination. Further, based on the basic temperature requirements of the main driver and the co-driver, that is, based on the first basic temperature and the second basic temperature, the main driver's air outlet temperature and the co-driver's air outlet temperature are determined in combination with the main driver's temperature offset value, the co-driver's temperature offset value, the main driver's sunlight radiation temperature and the co-driver's sunlight radiation temperature, and the main driver's air outlet temperature and the co-driver's air outlet temperature are determined respectively. The air conditioning operation is controlled so that the air outlet temperature on the main driver's side reaches the main driver's air outlet temperature, and the air outlet temperature on the co-driver's side reaches the co-driver's air outlet temperature.

[0067] The vehicle control method disclosed in the present invention takes into account the different effects of sunlight illumination on the main driver's seat and the co-driver's seat, and determines the temperature offset value of the main driver's seat and the sunlight radiation temperature of the main driver's seat by respectively obtaining the sunlight illumination of the main driver's seat on the main driver's side. Obtain the sunlight illumination of the co-driver's seat on the co-driver's side, and determine the temperature offset value of the co-driver's seat and the sunlight radiation temperature of the co-driver's seat. And according to the basic temperatures of the main driver's seat and the co-driver's seat, determine the target air outlet temperature of the main driver's side and the target air outlet temperature of the co-driver's side respectively. In this way, the air conditioning operation is controlled and the air outlet temperature of the main driver's side and the co-driver's side is adjusted to effectively reduce the temperature difference problem caused by uneven sunlight, thereby improving the overall comfort of the passengers in the car.

[0068] In some embodiments, in combination Figure 2 As shown, a method for controlling a vehicle air conditioner is provided, comprising:

[0069] S201, obtaining the sunlight illumination of the main passenger seat and the sunlight illumination of the co-pilot seat.

[0070] Optionally, light sensors are provided on the main driver's side and the passenger's side, respectively, and the light sensors on both sides are used to detect the main driver's side sunlight illumination and the passenger's side sunlight illumination. The specific location of the light sensor is not limited here.

[0071] S202: Determine a light intensity weight coefficient according to the sunlight illumination on the main passenger seat and the sunlight illumination on the co-passenger seat.

[0072] Optionally, the step of determining the light intensity weight coefficient according to the main driver's sunlight illumination and the co-driver's sunlight illumination includes: when the main driver's sunlight illumination is equal to the co-driver's sunlight illumination, determining the light intensity weight coefficient H=0.5. When the main driver's sunlight illumination is not equal to the co-driver's sunlight illumination, determining the light intensity weight coefficient H=Ls1 / (Ls1+Ls2), where Ls1 is the main driver's sunlight illumination and Ls2 is the co-driver's sunlight illumination.

[0073] In this embodiment, when the sunlight illumination of the main driver's side and the sunlight illumination of the co-driver's side are equal, it means that the illumination of the main and co-driver cabins is uniform, and the weight coefficient H is set to 0.5, that is, the air conditioning temperature of the main driver's side and the co-driver's side is adjusted the same, thereby improving the balance of temperature on both sides of the vehicle and providing a uniform comfortable experience. In the case where the sunlight illumination of the main driver's side is not equal to the sunlight illumination of the co-driver's side, that is, the illumination of the main and co-driver cabins is uneven, the weight coefficient is dynamically adjusted according to the actual light intensity of the main driver's side and the co-driver's side, so that the air conditioning system can be adjusted differently according to the specific lighting conditions of the main driver's side and the co-driver's side, thereby improving the comfort of riding. Specifically, the calculation of the weight coefficient takes into account the ratio of the light intensity of the main driver's side and the co-driver's side, so that it can distinguish different light intensities, and then adjust the temperature of the two sides separately, thereby improving the accuracy of temperature adjustment on both sides.

[0074] S203, determining the lighting temperature of the main passenger seat and the lighting temperature of the co-pilot seat according to the sunlight illumination of the main passenger seat and the co-pilot seat and the light intensity weight coefficient.

[0075] Optionally, the step of determining the main driver's light temperature and the co-driver's light temperature according to the main driver's sunlight illumination and the co-driver's sunlight illumination and the light intensity weight coefficient includes: calculating the main driver's light temperature according to a first formula, the first formula is: (Ls1+Ls2)×H / 60=Ts1. Calculating the co-driver's light temperature according to a second formula, the second formula is: (Ls1+Ls2)×(1-H) / 60=Ts2. Among them, Ls1 is the main driver's sunlight illumination, Ls2 is the co-driver's sunlight illumination, Ts1 is the main driver's light temperature, Ts2 is the co-driver's light temperature, and H is the light intensity weight coefficient.

[0076] In this embodiment, the main driver's side sunlight illumination and the co-driver's side sunlight illumination are comprehensively considered and combined with the light intensity weight coefficient H to calculate the main driver's side light temperature and the co-driver's side light temperature respectively. This not only takes into account the overall balance of the temperature inside the vehicle, but also takes into account the different effects of sunlight intensity on the main driver's side and the co-driver's side, so as to improve the accuracy of temperature regulation on the main driver's side and the co-driver's side and improve the comfort of the vehicle environment.

[0077] S204: Determine a temperature offset value for the main passenger seat and a temperature offset value for the auxiliary passenger seat according to the light temperature for the main passenger seat and the light temperature for the auxiliary passenger seat.

[0078] Optionally, the step of determining the temperature offset value of the main driver's seat and the temperature offset value of the auxiliary driver's seat respectively according to the light temperature of the main driver's seat and the light temperature of the auxiliary driver's seat includes: calculating the temperature offset value of the main driver's seat according to a third formula, and the third formula is: TAOS1 = K s ×Ts1. According to the fourth formula, the passenger temperature offset value is calculated. The fourth formula is: TAOS2 = K s ×Ts2. Where: TAOS1 is the temperature offset value of the main driver's seat, TAOS2 is the temperature offset value of the co-driver's seat, Ts1 is the light temperature of the main driver's seat, Ts2 is the light temperature of the co-driver's seat, K s Represents the sunlight temperature weighting factor.

[0079] Optionally, the sunlight temperature weighting factor K s The value range of K is 1.5 to 2. s The specific values ​​include but are not limited to: 1.5, 1.7, 1.9 or 2.

[0080] In this embodiment, according to the actual lighting conditions on the driver's side and the passenger's side, the temperature offset values ​​of the driver's side and the passenger's side are calculated by introducing the sunlight temperature weight factor Ks, and the air outlet temperature on the driver's side and the passenger's side is compensated to offset the additional heat brought by direct sunlight. By adjusting the air outlet temperature of the air conditioner to compensate for the influence of direct sunlight, the stability of the temperature inside the car is improved, and the comfort of passengers is also improved.

[0081] Different weights are given according to the different lighting conditions on the driver's side and the co-driver's side to improve the accuracy of temperature adjustment and more accurately reflect the impact of light intensity on the temperature inside the car. Furthermore, the driver's side lighting temperature and the co-driver's side lighting temperature are determined based on the driver's side sunlight illumination and the co-driver's side sunlight illumination and the light intensity weight coefficient. Then, based on the light temperature, the driver's side temperature offset value and the co-driver's side temperature offset value are determined. In this way, by considering the possible lighting differences on both sides of the vehicle, the temperatures on both sides are compensated separately, so that the air outlet temperature of the air conditioner can adapt to different lighting conditions, thereby improving the temperature balance on both sides of the car and avoiding obvious temperature differences.

[0082] S205, determining the sunlight radiation temperature of the main passenger seat and the sunlight radiation temperature of the co-pilot seat respectively according to the sunlight illumination of the main passenger seat and the sunlight illumination of the co-pilot seat.

[0083] Optionally, the step of determining the sunlight radiation temperature of the main driver's seat and the sunlight radiation temperature of the co-driver's seat respectively according to the sunlight illumination of the main driver's seat and the co-driver's seat includes: calculating the sunlight radiation temperature according to the fifth formula. The fifth formula is: In the formula, C is the solar radiation temperature, ɑ is the absorptivity of the object to solar radiation, I is the solar radiation illuminance (W / m2), ε is the emissivity of the windshield, and σ is the Stefan-Boltzmann constant. Where I is the sunlight illuminance on the main driver's side, and the solar radiation temperature C1 on the main driver's side is calculated by the fifth formula. I is the sunlight illuminance on the co-driver's side, and the solar radiation temperature C2 on the co-driver's side is calculated by the fifth formula.

[0084] In this embodiment, the temperature rise due to solar radiation, ie, the solar radiation temperature C, is calculated so that the air conditioning system can be properly adjusted for this additional heat load, thereby improving the adjustment accuracy of the air conditioning system and the riding comfort.

[0085] Optionally, the Stefan-Boltzmann constant σ is taken as 5.67×10 -8 W / m 2 ·K 4 The solar radiation absorption rate ɑ ranges from 15% to 30%. The emissivity ε of the windshield is 0.9.

[0086] Optionally, the solar radiation temperature is calculated according to the sunlight illumination outside the vehicle. The derivation process of the calculation formula of the solar radiation temperature is as follows: The influence of solar radiation on the surface temperature of an object is usually calculated according to an ideal state. According to the Stefan-Boltzmann law: P = σAT, P is the radiation flux (unit W), σ is the Stefan-Boltzmann constant, A is the surface area of ​​the object, here refers to the surface area of ​​the front windshield of the car, and T is the temperature (Kelvin K).

[0087] If the absorption of solar radiation is taken into account, according to the principle that the absorbed solar radiation power is equal to the power radiated outward by the object itself, the formula can be: αIA=εσAT 4 , a simple estimation formula for solar radiation intensity and temperature is derived:

[0088] T=(αI / εσ) -4 ;

[0089] C = T-273.15;

[0090] Where: I represents solar radiation illuminance, unit is W / m2; ɑ is the absorption rate of solar radiation by the object, the absorption rate of the car windshield is usually 15% to 30%, ε represents the emissivity of the windshield, which is about 0.9; the above formula can be used to estimate the value of transient solar radiation temperature C under different lighting conditions.

[0091] S206, obtaining a first basic temperature of the main driver's seat and a second basic temperature of the auxiliary driver's seat.

[0092] Optionally, the step of obtaining the first basic temperature of the main driver's seat and the second basic temperature of the co-driver's seat includes: obtaining the outside temperature, the inside temperature, the main driver's seat setting temperature, and the co-driver's seat setting temperature. According to the sixth formula, the first basic temperature is calculated. The sixth formula is: TB1 = K set ×T set1 -K r ×T r -K am ×T am According to the seventh formula, the second base temperature is calculated. The seventh formula is: TB2 = K set ×T set2 -K r ×T r -K am ×T am TB1 is the first basic temperature of the driver's seat, TB2 is the second basic temperature of the passenger's seat, K set is the weight factor for setting temperature, T set1 The setting temperature of the main driver's seat, T set2 Set the temperature for the passenger seat, K r is the vehicle interior temperature weight factor, T r is the temperature inside the car, K am is the weight factor of the outside temperature, T am The temperature outside the vehicle.

[0093] In this embodiment, by obtaining the outside temperature, the inside temperature, and the set temperatures of the main and co-driver seats, multiple factors affecting the air outlet temperature are comprehensively considered, and weight factors corresponding to different factors are set to determine the first basic temperature that meets the temperature requirements of the main driver's side and the second basic temperature that meets the temperature requirements of the co-driver's side. In this way, by combining the outside temperature, the inside temperature, and the personalized temperature settings of the passengers, the air outlet temperature of the air conditioner can be automatically adjusted according to the settings of each passenger and the external environmental conditions, significantly improving the riding comfort of the passengers. By introducing weight factors and a formulaic calculation method, the air conditioning system realizes intelligent management of the temperature inside the car and improves the accuracy and efficiency of the adjustment.

[0094] Optionally, set the temperature weight factor K set The value range of K is 7.5 to 8, and the specific value includes but is not limited to 7.5, 7.7, 7.9 or 8. r The value range of is 3.75 to 3.95, and the specific value includes but is not limited to 3.75, 3.85 or 3.95. The weight factor K of the outside temperature am The value range is 1.0 to 1.1, and specific values ​​include but are not limited to 1.0, 1.05 or 1.1.

[0095] S207 , determining the main passenger seat air outlet temperature and the co-pilot seat air outlet temperature according to the first basic temperature, the second basic temperature, the main passenger seat temperature offset value, the co-pilot seat temperature offset value, the main passenger seat sunlight radiation temperature and the co-pilot seat sunlight radiation temperature.

[0096] S208, controlling the operation of the air conditioner according to the air outlet temperature of the driver's seat and the air outlet temperature of the co-driver's seat.

[0097] Optionally, according to the first basic temperature, the second basic temperature, the temperature offset value of the main driver's seat, the temperature offset value of the co-driver's seat, the sunlight radiation temperature of the main driver's seat and the sunlight radiation temperature of the co-driver's seat, the step of determining the main driver's seat outlet air temperature and the co-driver's seat outlet air temperature includes: according to the eighth formula, the main driver's seat outlet air temperature is calculated, and the eighth formula is: TAO1=TB1-TAOS1+C1. According to the ninth formula, the co-driver's seat outlet air temperature is calculated, and the ninth formula is: TAO2=TB2-TAOS2+C2. Among them, TAO1 is the main driver's seat outlet air temperature, TAO2 is the co-driver's seat outlet air temperature, TB1 is the first basic temperature of the main driver's seat, TB2 is the second basic temperature of the co-driver's seat, TAOS1 is the temperature offset value of the main driver's seat, TAOS2 is the temperature offset value of the co-driver's seat, C1 is the sunlight radiation temperature of the main driver's seat, and C2 is the sunlight radiation temperature of the co-driver's seat.

[0098] In this embodiment, considering the effect of sunlight intensity on the temperature inside the car, the temperature offset value of the temperature increase inside the car caused by sunlight intensity is subtracted from the base temperature, and then the solar radiation temperature is added to obtain a more accurate air outlet temperature. The air outlet temperatures for the driver's side and the co-driver's side are calculated by comprehensively considering the base temperature, the temperature offset value and the solar radiation temperature. The control algorithm disclosed in the present invention is used to specifically determine the air outlet temperature for the driver's side and the co-driver's side based on the different sunlight illumination on the driver's side and the co-driver's side, combined with the personalized temperature requirements of the passengers on the driver's side and the co-driver's side, and combined with the external environmental conditions, thereby improving the temperature regulation accuracy of the air conditioning system and improving the riding comfort for passengers.

[0099] In some embodiments, the air conditioner includes a main driver's air duct, a co-driver's air duct, a main driver's temperature damper and a co-driver's temperature damper. Figure 3 As shown, a method for controlling a vehicle air conditioner is provided, comprising:

[0100] S301, obtaining the sunlight illumination of the main passenger seat and the sunlight illumination of the co-pilot seat.

[0101] S302: Determine a temperature offset value for the main passenger seat and a temperature offset value for the auxiliary passenger seat according to the sunlight illumination of the main passenger seat and the sunlight illumination of the auxiliary passenger seat.

[0102] S303, determining the sunlight radiation temperature of the main passenger seat and the sunlight radiation temperature of the co-pilot seat respectively according to the sunlight illumination of the main passenger seat and the sunlight illumination of the co-pilot seat.

[0103] S304: Obtain a first basic temperature of the main driver's seat and a second basic temperature of the auxiliary driver's seat.

[0104] S305 , determining the main passenger seat air outlet temperature and the co-pilot seat air outlet temperature according to the first basic temperature, the second basic temperature, the main passenger seat temperature offset value, the co-pilot seat temperature offset value, the main passenger seat sunlight radiation temperature and the co-pilot seat sunlight radiation temperature.

[0105] S306, obtaining the surface temperature of the evaporator of the air conditioner and the hot air temperature.

[0106] S307, determining the first opening degree SW1 of the main driver temperature damper according to the tenth formula.

[0107] S308, adjusting the opening of the main driver's temperature damper according to the first opening SW1;

[0108] S309: Determine the second opening degree SW2 of the passenger temperature damper according to the eleventh formula.

[0109] S310, adjusting the opening of the passenger temperature damper according to the second opening SW2.

[0110] Among them, the tenth formula is: SW1=((TAO1-T E ) / (T W -T E ))×100%.

[0111] The eleventh formula is: SW2 = ((TAO2-T E ) / (T W -T E ))×100%.

[0112] In the formula, TAO1 is the main passenger air outlet temperature, TAO2 is the passenger air outlet temperature, T E is the surface temperature of the evaporator, T W is the temperature of hot air used for heating.

[0113] In this embodiment, the function of the temperature damper in the air conditioner is to control the mixing ratio of cold and hot air by changing the air flow direction. E The difference between the hot air temperature T W Evaporator surface temperature T E The difference between the two values ​​is compared to determine the first opening degree SW1 of the driver's temperature damper. And by calculating the passenger's air outlet temperature TAO2 and the evaporator surface temperature T E The difference between the hot air temperature T W Evaporator surface temperature T EBy comparing the difference between the two, the second opening SW2 of the passenger temperature damper is determined. By determining the opening of the driver's seat temperature damper and the passenger's seat temperature damper, the opening of the temperature damper of each air duct is controlled to adjust the mixing ratio of cold and hot air, improve the accuracy of the air outlet temperature control, and thus improve the comfort of passengers. Fig. 9 As shown in the figure, the adjustment diagram of the temperature damper is shown. Taking the main driving temperature damper as an example, when the main driving air outlet temperature TAO1 is equal to the evaporator surface temperature, SW1 = 0, which represents the full cold end; when the main driving air outlet temperature TAO1 is equal to the hot air temperature T W , then SW1=100, representing the full hot end.

[0114] Alternatively, the hot air temperature includes a water temperature of the engine, a heater core temperature, or a maximum value of the water temperature and the heater core temperature.

[0115] Optionally, the air conditioner includes an evaporator for cooling and a heater core for heating. When the temperature needs to be adjusted, the temperature damper will adjust its position so that the cold air passing through the evaporator and the hot air passing through the heater core are mixed in different proportions and blown out. For example: when the user sets the temperature below the low temperature threshold, the temperature damper adjusts the opening position to direct most of the air to the evaporator, so that the cold air is blown out directly, and only a small amount or no air passes through the heater core, thereby achieving the cooling effect. The low temperature threshold value range is 16°C to 18°C. When the user sets the temperature above the high temperature threshold, the temperature damper will adjust the opening position to allow more air to pass through the heater core, and then blow out the air after heating, or let the cold and hot air mix to reach a suitable temperature before blowing out. The high temperature threshold value range is 28°C to 30°C. According to different air outlet temperature requirements, participate in controlling the mixing ratio of cold and warm gases, so as to achieve adaptive adjustment of the passenger compartment temperature.

[0116] Optionally, the step of adjusting the opening of the main driving temperature air door according to the first opening SW1 includes: determining a driving duty ratio of a motor corresponding to the main driving temperature air door according to the first opening SW1, and controlling the operation of the motor according to the driving duty ratio.

[0117] Optionally, the step of adjusting the opening of the passenger temperature damper according to the second opening SW2 includes: determining a driving duty ratio of a motor corresponding to the passenger temperature damper according to the second opening SW2, and controlling the operation of the motor according to the driving duty ratio.

[0118] Optionally, the temperature damper motor is controlled by a feedforward + PI control algorithm to improve the temperature damper control accuracy. Taking the main driving temperature damper control as an example, the specific control method includes: 1,The feedforward value of the temperature damper motor on the main driver's side is obtained by looking up the table separately. At the same time, the difference between the actual air outlet temperature detected by the temperature sensor set on the main driver's side and TAO1 is obtained for PI control as a fine-tuning of the temperature damper motor. The Kp and Ki values ​​in the PI control are calculated based on the difference between the actual air outlet temperature and TAO1 and obtained by looking up the table.

[0119] In some embodiments, in combination Figure 4 As shown, a method for controlling a vehicle air conditioner is provided, comprising:

[0120] S401, obtaining the sunlight illumination of the main passenger seat and the sunlight illumination of the co-pilot seat.

[0121] S402, determining a temperature offset value for the main passenger seat and a temperature offset value for the auxiliary passenger seat according to the sunlight illumination for the main passenger seat and the sunlight illumination for the auxiliary passenger seat;

[0122] S403, determining the sunlight radiation temperature of the main passenger seat and the sunlight radiation temperature of the co-pilot seat respectively according to the sunlight illumination of the main passenger seat and the sunlight illumination of the co-pilot seat.

[0123] S404: Obtain a first basic temperature of the main driver's seat and a second basic temperature of the auxiliary driver's seat.

[0124] S405 , determining the main passenger seat air outlet temperature and the co-pilot seat air outlet temperature according to the first basic temperature, the second basic temperature, the main passenger seat temperature offset value, the co-pilot seat temperature offset value, the main passenger seat sunlight radiation temperature and the co-pilot seat sunlight radiation temperature.

[0125] S406: Calculate the comprehensive air outlet temperature TAO according to the twelfth formula X .

[0126] Among them, the twelfth formula is: TAO X =TAO1×α+TAO2×(1-α). In the formula, TAO X is the comprehensive air outlet temperature of the air conditioner, TAO1 is the air outlet temperature of the main driver's cabin, TAO2 is the air outlet temperature of the co-driver's cabin, and α is the weight factor of the main cockpit temperature.

[0127] S407, based on the comprehensive air outlet temperature TAO X , control the operation of the air conditioner.

[0128] In this embodiment, by introducing the weight factor α, the method can perform a weighted average of the main driver's cabin air outlet temperature TAO1 and the co-pilot's cabin air outlet temperature TAO2 according to the weight factor α of the main driver's cabin temperature to obtain the comprehensive air outlet temperature TAO of the air conditioner. X The weighted average calculation helps to achieve a balanced temperature on both sides of the vehicle and improve the overall riding experience. X , control the operation of the air conditioner to ensure the stability and comfort of the temperature in the car.

[0129] Optionally, the weight factor of the main cockpit temperature is determined according to the volume of the main cockpit and the volume of the co-pilot cabin. When the volume of the main cockpit and the volume of the co-pilot cabin are equal, α=0.5. When the volume of the main cockpit and the volume of the co-pilot cabin are not equal, calculate according to the following formula: α=V1 / (V1+V2), where V1 is the volume of the main cockpit and V2 is the volume of the co-pilot cabin. The volume of the main cockpit and the volume of the co-pilot cabin can be estimated based on the vehicle body design parameters, which will not be described in detail here. In this way, the proportion of each air outlet temperature can be reasonably determined based on the volume of the main cockpit and the volume of the co-pilot cabin, thereby improving the rationality of the calculation of the comprehensive air outlet temperature and improving the control accuracy of the air conditioner.

[0130] In some embodiments, in combination Figure 5 As shown, a method for controlling a vehicle air conditioner is provided, comprising:

[0131] S501, obtaining the sunlight illumination of the main passenger seat and the sunlight illumination of the co-pilot seat.

[0132] S502, determining a temperature offset value for the main passenger seat and a temperature offset value for the auxiliary passenger seat according to the sunlight illumination for the main passenger seat and the sunlight illumination for the auxiliary passenger seat;

[0133] S503, determining the sunlight radiation temperature of the main passenger seat and the sunlight radiation temperature of the co-pilot seat respectively according to the sunlight illumination of the main passenger seat and the sunlight illumination of the co-pilot seat.

[0134] S504: Obtain a first basic temperature of the main driver's seat and a second basic temperature of the auxiliary driver's seat.

[0135] S505 , determining the main passenger side air outlet temperature and the co-pilot side air outlet temperature according to the first basic temperature, the second basic temperature, the main passenger side temperature offset value, the co-pilot side temperature offset value, the main passenger side solar radiation temperature and the co-pilot side solar radiation temperature.

[0136] S506: Calculate the comprehensive air outlet temperature TAO according to the twelfth formula X .

[0137] Among them, the twelfth formula is: TAO X =TAO1×α+TAO2×(1-α). In the formula, TAO X is the comprehensive air outlet temperature of the air conditioner, TAO1 is the air outlet temperature of the main driver's cabin, TAO2 is the air outlet temperature of the co-driver's cabin, and α is the weight factor of the main cockpit temperature.

[0138] S507, based on the comprehensive air outlet temperature TAO X and outside temperature to determine the target air supply mode of the air conditioner.

[0139] S508, controlling the mode damper corresponding to the target air supply mode to open.

[0140] Among them, the air supply mode includes one or more of the following modes: face blowing mode, foot blowing mode, defrost mode, face blowing-foot blowing mode, face blowing-defrost mode, foot blowing-defrost mode and face blowing-foot blowing-defrost mode.

[0141] In this embodiment, according to the comprehensive air outlet temperature TAO X The system can determine the air supply mode suitable for the current environmental conditions based on the target air supply mode and the outside temperature. According to the target air supply mode, the opening of the air door is controlled to improve the comfort needs of passengers in different environments. By providing a variety of air supply modes, including face blowing mode, foot blowing mode, defrosting mode and their combination modes, the passenger's choice is increased to meet the personalized needs of different passengers. In addition, the various air supply modes can adapt to different climatic conditions, which improves the adaptability and flexibility of the system.

[0142] Optionally, the step of controlling the opening of the mode damper corresponding to the target air supply mode includes: determining the installation position of the mode damper corresponding to the target air supply mode. According to the installation position, the opening angle of the mode damper is determined. According to the opening angle, the motor of the mode damper is controlled to operate to drive the mode damper to open. The setting positions of the air ducts of the air supply modes of the air conditioner are different. For example, the setting positions of the air ducts corresponding to the face blowing mode and the foot blowing mode, the air duct corresponding to the face blowing mode is set toward the passenger's face, and the air duct of the foot blowing mode corresponds to the passenger's feet. Obviously, the setting positions of the air ducts of the two are different. As a result, the installation positions of the corresponding mode dampers are also different. Therefore, according to the installation position of the mode damper, the opening angle of the mode damper is determined to achieve precise control of the mode damper.

[0143] Optionally, according to the comprehensive air outlet temperature TAO X and the outside temperature, the step of determining the target air supply mode of the air conditioner includes: according to the comprehensive air outlet temperature TAO X and outside temperature, and a two-dimensional lookup table is used to determine the target air supply mode.

[0144] Combination Fig.10 As shown, the comprehensive air outlet temperature TAO X Schematic diagram of the relationship with the mode damper. The air supply mode includes face blowing mode, foot blowing mode, and defrost mode, which correspond to: FOOT-foot blowing, B / L-defrost, FACE-face blowing. As shown in the figure, a temperature hysteresis range is set for each air outlet mode to prevent repeated jumps at the critical point of the mode.

[0145] In some embodiments, in combination Figure 6 As shown, a method for controlling a vehicle air conditioner is provided, comprising:

[0146] S601, obtaining the sunlight illumination of the main passenger seat and the auxiliary passenger seat.

[0147] S602, determining a temperature offset value for the main passenger seat and a temperature offset value for the auxiliary passenger seat according to the sunlight illumination for the main passenger seat and the sunlight illumination for the auxiliary passenger seat;

[0148] S603, determining the sunlight radiation temperature of the main passenger seat and the sunlight radiation temperature of the co-pilot seat respectively according to the sunlight illumination of the main passenger seat and the sunlight illumination of the co-pilot seat.

[0149] S604: Obtain a first basic temperature of the driver's seat and a second basic temperature of the passenger's seat.

[0150] S605 , determining the main passenger seat air outlet temperature and the co-pilot seat air outlet temperature according to the first basic temperature, the second basic temperature, the main passenger seat temperature offset value, the co-pilot seat temperature offset value, the main passenger seat sunlight radiation temperature and the co-pilot seat sunlight radiation temperature.

[0151] S606: Calculate the comprehensive air outlet temperature TAO according to the twelfth formula X .

[0152] Among them, the twelfth formula is: TAO X =TAO1×α+TAO2×(1-α). In the formula, TAO X is the comprehensive air outlet temperature of the air conditioner, TAO1 is the air outlet temperature of the main driver's cabin, TAO2 is the air outlet temperature of the co-driver's cabin, and α is the weight factor of the main cockpit temperature.

[0153] S607, at the integrated air outlet temperature TAO X When the temperature is greater than the first temperature threshold, the air conditioner is controlled to operate in an external circulation mode.

[0154] S608, at the comprehensive air outlet temperature TAO X When the temperature is less than or equal to the second temperature threshold, the air conditioner is controlled to operate in an internal circulation mode. The first temperature threshold is greater than the second temperature threshold.

[0155] In this embodiment, at the integrated air outlet temperature TAO X When the temperature is greater than the first temperature threshold t1, the air conditioner is controlled to operate in the external circulation mode, that is, the vehicle operates in the heating mode, and the external circulation mode is turned on to avoid fogging of the windows. X When the temperature is less than or equal to the second temperature threshold t2, that is, the vehicle is in cooling mode, the air conditioner is controlled to start the internal circulation mode to improve the cooling efficiency, increase the temperature drop speed, and reduce energy consumption. Fig.11 As shown, the comprehensive air outlet temperature TAO X Relationship diagram with the opening degree of the mode damper.

[0156] Optionally, the first temperature threshold t1 has a value range of 26°C to 30°C, and specific values ​​include but are not limited to 26°C, 27°C, 28°C, 29°C or 30°C. The second temperature threshold t2 has a value range of 15°C to 18°C, and specific values ​​include but are not limited to 15°C, 16°C, 17°C or 18°C.

[0157] In some embodiments, in combination Figure 7 As shown, a method for controlling a vehicle air conditioner is provided, comprising:

[0158] S701, obtaining the sunlight illumination of the main passenger seat and the sunlight illumination of the co-pilot seat.

[0159] S702, determining a temperature offset value for the main passenger seat and a temperature offset value for the auxiliary passenger seat according to the sunlight illumination for the main passenger seat and the sunlight illumination for the auxiliary passenger seat;

[0160] S703, determining the sunlight radiation temperature of the main passenger seat and the sunlight radiation temperature of the co-pilot seat respectively according to the sunlight illumination of the main passenger seat and the sunlight illumination of the co-pilot seat.

[0161] S704: Obtain a first basic temperature of the driver's seat and a second basic temperature of the passenger's seat.

[0162] S705 , determining the main passenger side air outlet temperature and the co-pilot side air outlet temperature according to the first basic temperature, the second basic temperature, the main passenger side temperature offset value, the co-pilot side temperature offset value, the main passenger side solar radiation temperature and the co-pilot side solar radiation temperature.

[0163] S706: Calculate the comprehensive air outlet temperature TAO according to the twelfth formula X .

[0164] Among them, the twelfth formula is: TAO X =TAO1×α+TAO2×(1-α). In the formula, TAO X is the comprehensive air outlet temperature of the air conditioner, TAO1 is the air outlet temperature of the main driver's cabin, TAO2 is the air outlet temperature of the co-driver's cabin, and α is the weight factor of the main cockpit temperature.

[0165] S707, based on the comprehensive air outlet temperature TAO X and the outside temperature, determine the target temperature of the evaporator and the temperature change rate of the evaporator.

[0166] S708, acquiring the surface temperature of the evaporator, and obtaining a temperature difference between the surface temperature of the evaporator and the target temperature.

[0167] S709: fine-tune the target speed of the compressor using a PI control algorithm according to the temperature difference and the temperature change rate.

[0168] S710, determining the target speed of the compressor by combining the feedforward value of the target speed of the compressor and the PI control algorithm.

[0169] In this embodiment, the target speed of the compressor adopts the feedforward value + PI control algorithm. First, the feedforward value of the target speed of the compressor is calibrated according to the test results of the environmental chamber. Then, the comprehensive outlet air temperature TAO is calculated. X The target temperature of the evaporator and the rate of change of the evaporator temperature are obtained by two-dimensional table lookup, taking the temperature outside the vehicle as the breakpoint. The PI algorithm control is performed based on the difference between the actual surface temperature of the evaporator and the target surface temperature of the evaporator to fine-tune the target speed of the compressor. The target basic speed of the compressor is obtained by table lookup based on the feedforward value, and the target speed of the compressor is finally obtained by combining the PI algorithm control.

[0170] According to the comprehensive air outlet temperature TAO X The PI control algorithm can adjust the compressor's target speed in real time based on the temperature difference and temperature change rate, improve the compressor's rapid response capability, and adjust in time to adapt to temperature changes. By combining the feedforward value and the PI control algorithm, the air conditioning system can more accurately control the compressor's target speed, thereby improving the system's energy efficiency and reducing energy consumption.

[0171] In some embodiments, the air conditioner includes a first blower disposed in the main passenger air duct and a second blower disposed in the auxiliary passenger air duct, Figure 8 As shown, a method for controlling a vehicle air conditioner is provided, comprising:

[0172] S801, obtaining the sunlight illumination of the main passenger seat and the sunlight illumination of the co-pilot seat.

[0173] S802, determining a temperature offset value for the main passenger seat and a temperature offset value for the auxiliary passenger seat according to the sunlight illumination for the main passenger seat and the sunlight illumination for the auxiliary passenger seat;

[0174] S803, determining the sunlight radiation temperature of the main passenger seat and the sunlight radiation temperature of the co-pilot seat respectively according to the sunlight illumination of the main passenger seat and the sunlight illumination of the co-pilot seat.

[0175] S804: Obtain a first basic temperature of the driver's seat and a second basic temperature of the passenger's seat.

[0176] S805, determining a first rotation speed of a first blower according to the temperature outside the vehicle and a first basic temperature of the driver's seat.

[0177] S806, controlling the first blower to operate according to the first speed.

[0178] S807: Determine a second rotation speed of the second blower according to the outside temperature of the vehicle and the second basic temperature of the passenger seat.

[0179] S808, controlling the second blower to operate according to the second speed.

[0180] In this embodiment, by controlling the blower speeds of the driver's seat and the front passenger's seat respectively, the air supply volumes of the driver's seat air duct and the front passenger's seat air duct can be controlled separately, thereby improving the accuracy of temperature regulation on the driver's side and the front passenger's side, helping to achieve temperature balance on both sides of the vehicle and improving ride comfort.

[0181] Optionally, the step of determining the first speed of the first blower according to the outside temperature and the first basic temperature of the main driver's seat includes: looking up a table to obtain the first speed corresponding to the first blower according to the outside temperature and the first basic temperature of the main driver's seat.

[0182] Optionally, the step of determining the second speed of the second blower according to the outside temperature and the second basic temperature of the passenger seat includes: looking up a table to obtain the second speed of the corresponding second blower according to the outside temperature and the second basic temperature of the passenger seat.

[0183] Optionally, the speed gears of the blower include a high speed gear HI, a medium speed gear and a low speed gear LO. Fig.12 As shown in the figure, after the vehicle is powered off, the default air volume setting is low speed LO. When the TB1 value is low, it is considered that the demand for cooling is high, and the blower gear is HI. When the TB1 value is high, it is considered that the demand for heating is high, and the blower gear is close to HI, and it is not directly shifted to high speed to avoid the discomfort of hot air blowing on the face.

[0184] In some embodiments, in combination Fig.13 As shown, a control device 1300 for a vehicle air conditioner is provided, including: a first acquisition unit 1301, used to acquire the sunlight illumination of the main driver's seat and the sunlight illumination of the co-driver's seat. A first determination unit 1302, used to determine the temperature offset value of the main driver's seat and the temperature offset value of the co-driver's seat, and determine the sunlight radiation temperature of the main driver's seat and the sunlight radiation temperature of the co-driver's seat, respectively, according to the sunlight illumination of the main driver's seat and the sunlight illumination of the co-driver's seat. A second acquisition unit 1303, used to acquire the first basic temperature of the main driver's seat and the second basic temperature of the co-driver's seat. A second determination unit 1304, used to determine the main driver's seat outlet air temperature and the co-driver's seat outlet air temperature according to the first basic temperature, the second basic temperature, the temperature offset value of the main driver's seat, the temperature offset value of the co-driver's seat, the sunlight radiation temperature of the main driver's seat and the sunlight radiation temperature of the co-driver's seat. A control unit 1305, used to control the operation of the air conditioner according to the air outlet temperature of the main driver's seat and the air outlet temperature of the co-driver's seat.

[0185] Combination Fig.14As shown, the embodiment of the present disclosure provides a control device 140 for a vehicle air conditioner, including a processor 1400 and a memory 1401. Optionally, the device 140 may also include a communication interface 1402 and a bus 1403. The processor 1400, the communication interface 1402, and the memory 1401 may communicate with each other through the bus 1403. The communication interface 1402 may be used for information transmission. The processor 1400 may call the logic instructions in the memory 1401 to execute the control method for the vehicle air conditioner of the above embodiment.

[0186] In addition, the logic instructions in the above-mentioned memory 1401 can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product.

[0187] The memory 1401 is a computer-readable storage medium that can be used to store software programs and computer executable programs, such as program instructions / modules corresponding to the method in the embodiment of the present disclosure. The processor 1400 executes the function application and data processing by running the program instructions / modules stored in the memory 1401, that is, the control method of the vehicle air conditioner in the above embodiment is implemented.

[0188] The memory 1401 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required for at least one function. The data storage area may store data created according to the use of the terminal device, etc. In addition, the memory 101 may include a high-speed random access memory and may also include a non-volatile memory.

[0189] In some embodiments, a vehicle is provided, comprising: a vehicle body. An air conditioner, arranged in the vehicle body. And a control device for the vehicle air conditioner as described in any of the above embodiments, the control device is installed in the vehicle body, and is used to control the operation of the air conditioner. The installation relationship described here is not limited to placement inside the vehicle body, but also includes installation connections with other components of the vehicle, including but not limited to physical connections, electrical connections or signal transmission connections. It can be understood by those skilled in the art that the control device for the vehicle air conditioner can be adapted to a feasible vehicle body, thereby realizing other feasible embodiments.

[0190] An embodiment of the present disclosure provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured to execute the above-mentioned vehicle air conditioner control method.

[0191] The technical solution of the embodiment of the present disclosure can be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiment of the present disclosure. The aforementioned storage medium may be a non-transient storage medium, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, and other media that can store program codes.

[0192] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible changes. Unless explicitly required, separate components and functions are optional, and the order of operation may vary. The parts and features of some embodiments may be included in or replace the parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and the claims, unless the context clearly indicates, the singular forms of "a", "an" and "the" are intended to include plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of listings containing one or more associated ones. In addition, when used in the present application, the term "comprise" and its variants "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups thereof. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method or device comprising the elements. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can refer to the description of the method part.

[0193] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods for each specific application to implement the described functions, but such implementations should not be considered to exceed the scope of the embodiments of the present disclosure. The technicians may clearly understand that, for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above may refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here.

[0194] The flowchart and block diagram in the accompanying drawings show the possible architecture, function and operation of the system, method and computer program product according to the embodiment of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of the code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. In the description corresponding to the flowchart and the block diagram in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in a different order from the order disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified functions or actions, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A method for controlling a vehicle air conditioner, characterized in that: include: Get the sunlight illumination of the main driver's seat and the co-driver's seat; According to the sunlight illuminance of the main driver's seat and the sunlight illuminance of the co-driver's seat, a temperature offset value of the main driver's seat and a temperature offset value of the co-driver's seat are determined respectively, and the sunlight radiation temperature of the main driver's seat and the sunlight radiation temperature of the co-driver's seat are determined; Obtain a first basic temperature of the driver's seat and a second basic temperature of the co-driver's seat; Determine the main driver's seat air outlet temperature and the co-driver's seat air outlet temperature according to the first basic temperature, the second basic temperature, the main driver's seat temperature offset value, the co-driver's seat temperature offset value, the main driver's seat sunlight radiation temperature and the co-driver's seat sunlight radiation temperature; The air conditioning operation is controlled according to the air outlet temperature of the main driver's seat and the co-driver's seat.

2. The control method according to claim 1, characterized in that: The steps of determining the temperature offset value of the main passenger seat and the temperature offset value of the co-pilot seat respectively according to the sunlight illumination of the main passenger seat and the sunlight illumination of the co-pilot seat include: Determine the light intensity weight coefficient according to the sunlight illumination on the main driver's seat and the sunlight illumination on the co-driver's seat; Determine the main driver's light temperature and the co-driver's light temperature according to the main driver's light illuminance and the co-driver's light illuminance and the light intensity weight coefficient; According to the main driver's seat light temperature and the co-driver's seat light temperature, a main driver's seat temperature offset value and a co-driver's seat temperature offset value are determined respectively.

3. The control method according to claim 2, characterized in that: The steps of determining the light intensity weight coefficient according to the sunlight illumination of the main driving seat and the sunlight illumination of the co-driving seat include: When the sunlight illuminance on the main passenger side is equal to the sunlight illuminance on the co-pilot side, the light intensity weight coefficient H is determined to be 0.5; When the sunlight illumination on the main driver's seat is not equal to the sunlight illumination on the co-driver's seat, the light intensity weight coefficient H=Ls1 / (Ls1+Ls2) is determined, where Ls1 is the sunlight illumination on the main driver's seat and Ls2 is the sunlight illumination on the co-driver's seat.

4. The control method according to claim 3, characterized in that: The steps of determining the main driver's seat light temperature and the co-driver's seat light temperature according to the main driver's seat light illuminance and the co-driver's seat light illuminance and the light intensity weight coefficient include: According to the first formula, the main driving light temperature is calculated, and the first formula is: (Ls1+Ls2)×H / 60=Ts1; According to the second formula, the passenger light temperature is calculated, and the second formula is: (Ls1+Ls2)×(1-H) / 60=Ts2; Among them, Ls1 is the sunlight illuminance on the main driver's seat, Ls2 is the sunlight illuminance on the co-driver's seat, Ts1 is the light temperature on the main driver's seat, Ts2 is the light temperature on the co-driver's seat, and H is the light intensity weight coefficient.

5. The control method according to claim 2, characterized in that: The steps of respectively determining the temperature offset value of the main driver's seat and the temperature offset value of the co-driver's seat according to the light temperature of the main driver's seat and the light temperature of the co-driver's seat include: According to the third formula, the main driving temperature offset value is calculated. The third formula is: TAOS1 = K s ×Ts1; According to the fourth formula, the passenger temperature offset value is calculated. The fourth formula is: TAOS2 = K s ×Ts2; Among them: TAOS1 is the temperature offset value of the main driver, TAOS2 is the temperature offset value of the co-driver, Ts1 is the light temperature of the main driver, Ts2 is the light temperature of the co-driver, K s Represents the sunlight temperature weighting factor.

6. The control method according to any one of claims 1 to 5, characterized in that: The steps of determining the sunlight radiation temperature of the main driving side and the sunlight radiation temperature of the co-driving side respectively according to the sunlight illumination of the main driving side and the sunlight illumination of the co-driving side include: According to the fifth formula, the solar radiation temperature is calculated; The fifth formula is: In the formula, C is the solar radiation temperature, α is the absorptivity of the object to solar radiation, I is the solar radiation illuminance (W / m2), ε is the emissivity of the windshield, and σ is the Stefan-Boltzmann constant; Among them, I takes the sunlight illumination of the main driver's seat, and the sunlight radiation temperature C1 of the main driver's seat is calculated by the fifth formula; I takes the sunlight illumination of the co-driver's seat, and the sunlight radiation temperature C2 of the co-driver's seat is calculated by the fifth formula.

7. The control method according to any one of claims 1 to 5, characterized in that: The step of obtaining the first basic temperature of the driver's seat and the second basic temperature of the passenger's seat includes: Get the outside temperature, inside temperature, driver's seat temperature, and co-driver's seat temperature. According to the sixth formula, the first basic temperature is calculated; the sixth formula is: TB1 = K set ×T set1 -K r ×T r -K am ×T am ; According to the seventh formula, the second basic temperature is calculated; the seventh formula is: TB2 = K set ×T set2 -K r ×T r -K am ×T am ; Among them, TB1 is the first basic temperature of the main driver's seat, TB2 is the second basic temperature of the co-driver's seat, K set is the weight factor for setting temperature, T set1 The setting temperature of the main driver, T set2 Set the temperature for the passenger seat, K r is the vehicle interior temperature weight factor, T r is the temperature inside the car, K am is the weight factor of the outside temperature, T am The temperature outside the vehicle.

8. The control method according to any one of claims 1 to 5, characterized in that: The step of determining the main driver's seat air outlet temperature and the co-driver's seat air outlet temperature according to the first basic temperature, the second basic temperature, the main driver's seat temperature offset value, the co-driver's seat temperature offset value, the main driver's seat sunlight radiation temperature and the co-driver's seat sunlight radiation temperature includes: According to the eighth formula, the main driving air outlet temperature is calculated, and the eighth formula is: TAO1 = TB1 - TAOS1 + C1; According to the ninth formula, the passenger air outlet temperature is calculated, and the ninth formula is: TAO2 = TB2 - TAOS2 + C2; Among them, TAO1 is the air outlet temperature of the main driver's seat, TAO2 is the air outlet temperature of the co-driver's seat, TB1 is the first basic temperature of the main driver's seat, TB2 is the second basic temperature of the co-driver's seat, TAOS1 is the temperature offset value of the main driver's seat, TAOS2 is the temperature offset value of the co-driver's seat, C1 is the sunlight radiation temperature of the main driver's seat, and C2 is the sunlight radiation temperature of the co-driver's seat.

9. The control method according to any one of claims 1 to 5, characterized in that: The air conditioner includes a main driver's air duct, a co-driver's air duct, a main driver's temperature damper, and a co-driver's temperature damper. According to the main driver's air outlet temperature and the co-driver's air outlet temperature, the steps of controlling the operation of the air conditioner include: Get the surface temperature and hot air temperature of the evaporator of the air conditioner; According to the tenth formula, the first opening degree SW1 of the main driving temperature air door is determined, SW1 = ((TAO1-T E ) / (T W -T E ))×100%; According to the eleventh formula, the second opening SW2 of the passenger temperature air door is determined; SW2 = ((TAO2-T E ) / (T W -T E ))×100%; Among them, TAO1 is the air outlet temperature of the main passenger seat, TAO2 is the air outlet temperature of the co-pilot seat, T E is the surface temperature of the evaporator, T W is the temperature of hot air used for heating; The openings of the driver's seat temperature damper and the passenger's seat temperature damper are adjusted according to the first opening SW1 and the second opening SW2 .

10. The control method according to any one of claims 1 to 5, characterized in that: The steps of controlling the operation of the air conditioner according to the air outlet temperature of the main driver's seat and the air outlet temperature of the co-driver's seat include: According to the twelfth formula, the comprehensive air outlet temperature TAO is calculated. X ; The twelfth formula is: TAO X =TAO1×α+TAO2×(1-α), where TAO X is the comprehensive air outlet temperature of the air conditioner, TAO1 is the air outlet temperature of the main driver's cabin, TAO2 is the air outlet temperature of the co-driver's cabin, and α is the weight factor of the main cabin temperature; According to the comprehensive air outlet temperature TAO X , control the operation of the air conditioner.

11. The control method according to claim 10, characterized in that: According to the comprehensive air outlet temperature TAO X , the steps to control the operation of the air conditioner include: According to the comprehensive air outlet temperature TAO X and outside temperature to determine the target air supply mode of the air conditioner; Control the mode damper corresponding to the target air supply mode to open; Among them, the air supply mode includes one or more of the following modes: face blowing mode, foot blowing mode, defrost mode, face blowing-foot blowing mode, face blowing-defrost mode, foot blowing-defrost mode and face blowing-foot blowing-defrost mode.

12. The control method according to claim 10, characterized in that: According to the comprehensive air outlet temperature TAO X , the steps to control the operation of the air conditioner include: At the combined air outlet temperature TAO X When the temperature is greater than the first temperature threshold, the air conditioner is controlled to operate in an external circulation mode; At the combined air outlet temperature TAO X When the temperature is less than or equal to the second temperature threshold, the air conditioner is controlled to operate in an internal circulation mode; The first temperature threshold is greater than the second temperature threshold.

13. The control method according to any one of claims 1 to 5, characterized in that: According to the comprehensive air outlet temperature TAO X , the steps to control the operation of the air conditioner include: According to the comprehensive air outlet temperature TAO X and the outside temperature, determining the target temperature of the evaporator and the temperature change rate of the evaporator; Acquire the surface temperature of the evaporator, and obtain the temperature difference between the surface temperature of the evaporator and the target temperature; According to the temperature difference and temperature change rate, the target speed of the compressor is fine-tuned using the PI control algorithm; The target speed of the compressor is determined by combining the feedforward value of the target speed of the compressor and the PI control algorithm.

14. The control method according to any one of claims 1 to 5, characterized in that: The air conditioner includes a first blower disposed in the main passenger air duct and a second blower disposed in the auxiliary passenger air duct, and the control method further includes: Determining a first speed of a first blower according to an outside temperature of the vehicle and a first basic temperature of a driver's seat; determining a second speed of the second blower according to the vehicle exterior temperature and a second base temperature of the passenger seat; The first blower and the second blower are controlled to operate according to a first rotational speed and a second rotational speed respectively.

15. A vehicle air conditioner control device, characterized in that: include: A first acquisition unit is used to acquire the sunlight illumination of the main driving seat and the auxiliary driving seat; A first determination unit determines a temperature offset value for the main driver's seat and a temperature offset value for the co-driver's seat, and determines a sunlight radiation temperature for the main driver's seat and a sunlight radiation temperature for the co-driver's seat, respectively, according to the sunlight illumination for the main driver's seat and the sunlight illumination for the co-driver's seat; A second acquisition unit, used to acquire a first basic temperature of a driver's seat and a second basic temperature of a passenger's seat; A second determining unit is used to determine the main driver's seat air outlet temperature and the co-driver's seat air outlet temperature according to the first basic temperature, the second basic temperature, the main driver's seat temperature offset value, the co-driver's seat temperature offset value, and the main driver's seat sunlight radiation temperature and the co-driver's seat sunlight radiation temperature; The control unit is used to control the operation of the air conditioner according to the air outlet temperature of the main driver's seat and the air outlet temperature of the co-driver's seat.

16. A vehicle air conditioner control device, comprising a processor and a memory storing program instructions, characterized in that: The processor is configured to execute the vehicle air conditioner control method according to any one of claims 1 to 14 when running the program instructions.

17. A vehicle, characterized in that: include: Vehicle body; Air conditioning, which is provided in the vehicle body; as well as The vehicle air conditioner control device as claimed in claim 15 or 16, wherein the control device is installed on the vehicle body and is used to control the operation of the air conditioner.

18. A readable storage medium storing program instructions, characterized in that: When the program instructions are executed, the computer is used to execute the vehicle air conditioner control method according to any one of claims 1 to 14.

Citation Information

Patent Citations

  • Method for controlling automatic air conditioning for automobile

    CN104309443A

  • Control method and control system for vehicle air conditioner compressor

    CN104417311A

  • Air conditioner control method, air conditioner controller, air conditioner control system and readable storage medium

    CN108016238A

  • Rotational speed control method, device and electronic device for air conditioning compressor

    CN109017218A

  • Vehicle air conditioner control method and device, computer equipment and storage medium

    CN115320330A